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%%
%% Utils used by HCI
%%
-module(hci_util).
-compile(export_all).
-include("include/hci_drv.hrl").
c_string(Data) when is_binary(Data) ->
c_string_(binary_to_list(Data));
c_string(Data) when is_list(Data) ->
c_string_(Data).
c_string_([0|_]) -> [];
c_string_([H|T]) -> [H|c_string_(T)].
find_enum_name(Value, Flags, Default) when is_integer(Value) ->
case lists:keyfind(Value, 2, Flags) of
false -> Default;
{Name, _Value} -> Name
end.
find_enum_name(Value, Flags) ->
case find_enum_name(Value, Flags, undefined) of
undefined -> erlang:error(badarg);
Name -> Name
end.
find_enum_value(Name, Flags, Default) when is_atom(Name) ->
case lists:keyfind(atom_to_list(Name), 1, Flags) of
false -> Default;
{_, Value} -> Value
end;
find_enum_value(Name, Flags, Default) when is_list(Name) ->
case lists:keyfind(Name, 1, Flags) of
false -> Default;
{_, Value} -> Value
end.
find_enum_value(Name, Flags) ->
case find_enum_value(Name, Flags, undefined) of
undefined -> erlang:error(badarg);
Value -> Value
end.
format_enum(Value, Kv) ->
case lists:keyfind(Value, 2, Kv) of
false -> "";
{Name, Value} -> Name
end.
format_bits(Value, KvList) ->
format_bits_(Value, KvList, []).
format_bits_(0, _Kv, Acc) ->
string:join(lists:reverse(Acc), ",");
format_bits_(Value, [{Key,Bits}|Kv], Acc) ->
if Value band Bits =:= Bits ->
format_bits_(Value band (bnot Bits),Kv,[Key|Acc]);
true ->
format_bits_(Value, Kv, Acc)
end;
format_bits_(Value, [], Acc) ->
Acc1 = [integer_to_list(Value) | Acc],
string:join(lists:reverse(Acc1), ",").
format_hci_dev_info(#hci_dev_info {
dev_id = _Dev_id,
name = Name,
bdaddr = BdAddr,
flags = Flags,
type = Type,
features = _Features,
pkt_type = _Pkt_type,
link_policy = _Link_policy,
link_mode = _Link_mode,
acl_mtu = Acl_mtu,
acl_pkts = Acl_pkts,
sco_mtu = Sco_mtu,
sco_pkts = Sco_pkts,
stat = S}) ->
Bus = find_enum_name(Type band 16#0f,
kv_dev_bus(), "UNKNOWN"),
Type1 = find_enum_name((Type band 16#30) bsr 4,
kv_dev_type(), "UNKNOWN"),
io_lib:format(
"~s: Type: ~s Bus: ~s\n"
"\tBD Address: ~s ACL MTU: ~w:~w SCO MTU: ~w:~w\n"
"\t~s\n"
"~s\n",
[Name, Type1, Bus,
bt:format_address(BdAddr),
Acl_mtu, Acl_pkts, Sco_mtu, Sco_pkts,
format_bits(Flags, kv_hci_dev_info_flags()),
format_hci_dev_stats(S)]).
format_hci_dev_stats(#hci_dev_stats {
err_rx = Err_rx,
err_tx = Err_tx,
cmd_tx = Cmd_tx,
evt_rx = Evt_rx,
acl_tx = Acl_tx,
acl_rx = Acl_rx,
sco_tx = Sco_tx,
sco_rx = Sco_rx,
byte_rx = Byte_rx,
byte_tx = Byte_tx }) ->
io_lib:format(
"\tRX bytes:~w acl:~w sco:~w events:~w errors:~w\n"
"\tTX bytes:~w acl:~w sco:~w commands:~w errors:~w",
[Byte_rx, Acl_rx, Sco_rx, Evt_rx, Err_rx,
Byte_tx, Acl_tx, Sco_tx, Cmd_tx, Err_tx]).
bdaddr({A,B,C,D,E,F}) ->
{ok,<<F,E,D,C,B,A>>};
bdaddr(Bin = <<_,_,_,_,_,_>>) -> {ok,Bin}; %% assume binary format is internal!
bdaddr(Addr) when is_list(Addr) ->
case bt:getaddr(Addr) of
{ok,{A,B,C,D,E,F}} ->
{ok,<<F,E,D,C,B,A>>};
Error ->
Error
end.
kv_dev_type() ->
[
{"BR/EDR", ?HCI_BREDR},
{"AMP", ?HCI_AMP}
].
kv_dev_bus() ->
[
{"VIRTUAL",?HCI_VIRTUAL},
{"USB", ?HCI_USB },
{"PCCARD", ?HCI_PCCARD },
{"UART", ?HCI_UART },
{"RS232",?HCI_RS232},
{"PCI", ?HCI_PCI},
{"SDIO", ?HCI_SDIO}
].
%% scan modes
kv_scan() ->
[
{ "OFF", ?SCAN_DISABLED },
{ "ISCAN", ?SCAN_INQUIRY },
{ "PSCAN", ?SCAN_PAGE },
{ "PISCAN", ?SCAN_PAGE bor ?SCAN_INQUIRY }
].
%% HCI device flags
kv_hci_dev_info_flags() ->
[
{ "UP", (1 bsl ?HCI_UP) },
{ "INIT", (1 bsl ?HCI_INIT) },
{ "RUNNING", (1 bsl ?HCI_RUNNING) },
{ "PSCAN", (1 bsl ?HCI_PSCAN) },
{ "ISCAN", (1 bsl ?HCI_ISCAN) },
{ "AUTH", (1 bsl ?HCI_AUTH) },
{ "ENCRYPT", (1 bsl ?HCI_ENCRYPT) },
{ "INQUIRY", (1 bsl ?HCI_INQUIRY) },
{ "RAW", (1 bsl ?HCI_RAW) }
].
kv_pkt_ptype() ->
[
{ "DM1", ?HCI_DM1 },
{ "DM3", ?HCI_DM3 },
{ "DM5", ?HCI_DM5 },
{ "DH1", ?HCI_DH1 },
{ "DH3", ?HCI_DH3 },
{ "DH5", ?HCI_DH5 },
{ "HV1", ?HCI_HV1 },
{ "HV2", ?HCI_HV2 },
{ "HV3", ?HCI_HV3 },
{ "2-DH1", ?HCI_2DH1 },
{ "2-DH3", ?HCI_2DH3 },
{ "2-DH5", ?HCI_2DH5 },
{ "3-DH1", ?HCI_3DH1 },
{ "3-DH3", ?HCI_3DH3 },
{ "3-DH5", ?HCI_3DH5 }
].
kv_sco_ptype() ->
[
{ "HV1", 16#0001 },
{ "HV2", 16#0002 },
{ "HV3", 16#0004 },
{ "EV3", ?HCI_EV3 },
{ "EV4", ?HCI_EV4 },
{ "EV5", ?HCI_EV5 },
{ "2-EV3", ?HCI_2EV3 },
{ "2-EV5", ?HCI_2EV5 },
{ "3-EV3", ?HCI_3EV3 },
{ "3-EV5", ?HCI_3EV5 }
].
kv_link_policy() ->
[
{ "NONE", 0 },
{ "RSWITCH", ?HCI_LP_RSWITCH },
{ "HOLD", ?HCI_LP_HOLD },
{ "SNIFF", ?HCI_LP_SNIFF },
{ "PARK", ?HCI_LP_PARK }
].
kv_link_mode() ->
[
{ "NONE", 0 },
{ "ACCEPT", ?HCI_LM_ACCEPT },
{ "MASTER", ?HCI_LM_MASTER },
{ "AUTH", ?HCI_LM_AUTH },
{ "ENCRYPT", ?HCI_LM_ENCRYPT },
{ "TRUSTED", ?HCI_LM_TRUSTED },
{ "RELIABLE", ?HCI_LM_RELIABLE },
{ "SECURE", ?HCI_LM_SECURE }
].
|
